As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LT ENG FILTER CLOG LIGHT ILLUMINATED AND EGT INCREASED. RETARDED THROTTLE AND DIVERTED TO BNA. FOUND METAL IN MAIN OIL SCREEN. ENGINE WAS CHANGED. CHECK-C 11-15-97 MCI. *S/D* ANALYSIS OF MATERIAL IN OIL SCREEN FOUND EVIDENCE OF M-50 BEARING MATERIAL. SUBMITTER STATES, NR 3 BEARING ASSEMBLY.